Alarm-clock



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UNITED STATES PATENT OFFICE.

ARTHUR C. REIOIIEL, OF UNION HILL, NElV JERSEY.

ALARM-CLOCK.

SPECIFICATION forming part of Letters Patent No. 617,856, dated January10, 1899.

Application filed January 26, 1898- Serial No. 667,993. (No model.)

To CLZZ whom it may concern:

Be it known that I, ARTHUR (J. REIcI-IEL, of Union Hill, in the countyof Hudson and State of New Jersey, have invented new and usefulImprovements in Clocks, of which the following is a full, clear, andexact descrip- This invention relates particularly to alarmclocks; andthe object is to provide a clock with two alarm-bells differing in soundor pitch and so arranged that both alarms may be sounded by theoperation of one spring and whereby one bell will be sounded alone for ashort time and then the two will be sounded together for a short time.

I will describe a clock embodying my invention and then point out thenovel features in the appended claims.

Reference is to behad to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a side elevation of a clock mechanism embodying myinvention. Fig. 2 is a similar view, but showing the parts in adifferent position. Fig. 3 is a section on the line 3 3 of Fig. 1, andFig. 4 is a detail of the brake mechanism.

Referring to the drawings, 1 designates the frame for a clock mechanismsubstantially of the usual character, and therefore all of the wheelscontained therein need not be described. Mounted to rotate in the frame1 is a gear-wheel 2, driven by a spring 3. This gear-wheel 2 meshes witha pinion on the shaft of a gear-wheel 4-, which in turn meshes with apinion on the shaft of an escapementwheel 5." Engaging with thisescapementwheel 5 is an escapement 6, secured to a rockshaft 7, and fromthis rock-shaft 7 an arm 8 extends, and this arm is provided at its endwith a striker 9 for striking the gong 10.

On the shaft of the wheel 2 is mounted a collar 11, having a finger 12,designed to engage with one of a series of radial slots formed in areleasing-wheel 13 for the second alarm, as will be hereinafterdescribed. The collar 11 has a spring yielding engagement with the shaftof the wheel 2, so that the shaft may be turned when it is desired towind the spring without entirely rotating the collar carrying the finger12. The spring yielding connection consists of a spring-washer 14..

Mounted on the shaft at the end opposite that with which the Wheel 2 isengaged is a similar gear-wheel 15, meshing with a pinion on the shaftof the gear-Wheel 16, and this gear-wheel 16 meshes with a pinion on theshaft of an escapement-wheel 17, with which an escapement 18 engages.This escapement 18 is attached to a rock-shaft 19, and from therock-shaft 19 an arm 20 is extended, and this arm 20 at its end isprovided with a striker 21 for sounding a gong 22, arranged inside thegong 10.

Pivoted to the frame 1 is a lever 28, the upper end of which is designedto be engaged by a pin 24, arranged near the periphery of the slottedwheel 13. The lower portion of this lever 23 is designed to engage witha laterally-extended finger 25 on an arm 26, extended upward from therock-shaft 19, so that when the pin 24 is in engagement with the upperportion of the lever the rock-shaft 19 will be held from movement,andconsequently the inner gong will not be sounded until the lever 23 isreleased, as will be hereinafter described. The lever 23 is providedwith an arm carrying a counterbalance 27.

In operation the time for sounding the alarm will be set in the usualmanner. \Vhen this time arrives, the spring-motor will be released, andby rotating the gear-wheel 2 the rock-shaft 7 will be rotated throughthe escapement mechanism, and this of course will sound the gong 10. Theshaft of the gearwheel 2 will be in rotation with the gearwheel, as willalso the gear-wheel15. hen the finger 12 of the collar 11 enters a slotin the slotted wheel 13, the said slotted wheel will be rotatedsufficiently to move its pin out of engagement with the lever 23. Thelever 23 will then swing under the pressure of the counterbalance 27,releasing the finger 25, and consequently releasing the rock-shaft 19.Then of course the said rock-shaft will be operated through the mediumof the gearing before described and sound the gong 22. Then both gongswill be sounded together for a short time or until the vibration of thestriking devices is stopped by a brake. This brake is here shown as anarm 28, attached to a shaft 29. The said arm 28 may be moved by means ofa handle 29, attached to the shaft 20, into engagement with the arms andstop their vibration. lhe movements of the finger 12 and wheel 13 areindicated by arrows in Fig. 2.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In-an alarm mechanism for clocks, the combinationof two driven primary-movement gear-wheels, two eseapement-wheelsrespectively driven by the gear-wheels, strikerarms respectivelyvibrated by the escapement wheels, a gong coacting with eachstriker-arm, a third arm in connection with one striker-arm and servingnormally to stop the movement thereof, a lever, one arm of which isnormally engaged with the third arm to hold the same in locked position,a slotted wheel having a pin engaged with the lever to hold the same,and a collar provided with a finger coacting with the slots of theslotted wheel to periodically turn the slotted wheel, the collar beingdriven by one of the primarymovement gear-wheels.

2. In an alarm mechanism, the combination of two primary-movementgear-wheels, two

alarm devices respectively driven by the primary-movement gear-wheels, alever coacting with one of said alarm devices to hold the same normallyinactive, a slotted wheel having a projected portion engaging the leverto normally hold the same, and a collar driven by one of the gear-wheelsand having a finger coaeting with the slotted wheel whereby toperiodically move the wheel so as to release the lever.

3. In an alarm mechanism, the combination of two primary-movementgear-wheels, two alarm devices respectively driven from the gear-wheels,a lever capable of holding one of said alarm devices inactive, the leverhavin g a counterbalance serving to normally hold the lever out ofengagement with the said alarm device, a slotted wheel having aprojected portion capable of engaging the lever to throw the sameagainst the tendency of the counterbalance, and a collar mounted to turnwith one of the gear-wheels, the collar having a linger coacting withthe slots of the slotted wheel, whereby to periodically turn the wheel.

ARTHUR O. REICIIEL. lVitnesses:

EVERARD BOLTON MAnsimLL, O. R. Fnnonsozv.

